Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5ddb586b8ec2d30…

MALICIOUS

PDF

129.7 KB Created: 2022-07-18 01:10:10 +00:00 Authoring application: chemill (via PDF Master 1.0.1) First seen: 2026-07-06
MD5: f77014f19b2acdc3bd365a8c97ba7666 SHA-1: 23f9ea77fe2ddf552fcd4e37c105fa2bfddf2c54 SHA-256: b5ddb586b8ec2d303defe931d513deab3a14343b529b0726e7a7bcb01308934d
232 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0007

Heuristics 8

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
    PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
  • Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
    PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://raisengine.com/cichlids/QXNrdXRyb24gUXVpeiBTaG93IEZyZWUgRG93bmxvYWQgW2Z1bGwgdmVyc2lvbl0QXN.elwell.commonsense/delwyn/camus/nonvisual/ZG93bmxvYWR8Wlk1Ym5wMWVueDhNVFkxT0RBd05qWTVPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/ PDF link annotation
    • https://www.nalabagam.com/autoit-exe2aut-better-download/In PDF document text
    • http://texocommunications.com/hd-online-player-aparichit-full-hd-movie-in-hindigolk-patched/In PDF document text
    • https://radialamoladora.com/wp-content/uploads/2022/07/filetype_iso_windows_8_pro_with_media_center_download.pdfIn PDF document text
    • http://www.prokaivos.fi/wp-content/uploads/kaffros.pdfIn PDF document text
    • https://boomingbacolod.com/fifa-14-crack-top-dz-repack-team/In PDF document text
    • https://domainmeans.com/wp-content/uploads/2022/07/Titan_Quest_Dragon_Hunter_Build.pdfIn PDF document text
    • https://vega-eu.com/wp-content/uploads/2022/07/javofab.pdfIn PDF document text
    • http://yotop.ru/2022/07/18/ocean-optics-software-password-extra-quality-crack/In PDF document text
    • http://capabiliaexpertshub.com/copytrans-contacts-activation-code-crack-top/In PDF document text
    • https://ebbsarrivals.com/2022/07/18/easeus-data-recovery-wizard-12-9-1-install-crack-serial-key-2019/In PDF document text
    • https://www.spasvseyarusi.ru/advert/kamen-rider-mugen-pc-game-hack-tool/In PDF document text
    • http://raga-e-store.com/mattran-movie-download-from-utorrenzcom-tamil-movies-2012-22-link/In PDF document text
    • https://www.thirtythousandhomes.org/wp-content/uploads/2022/07/Solucionario_Hidrologia_Aplicada_Ven_Te_Chow_BEST.pdfIn PDF document text
    • http://pussyhub.net/hd-online-player-drag-me-to-hell-extra-quality-full-movie-in-hindi/In PDF document text
    • https://shalamonduke.com/garmin-mapsource-turkey-navcity-2009-02-serial-key-keygen-better/In PDF document text
    • https://estatezone.net/wp-content/uploads/2022/07/Train_To_Pakistan_Movie_Download_720p_Movie.pdfIn PDF document text
    • https://razielagifts.com/wp-content/uploads/2022/07/stefgarl.pdfIn PDF document text
    • http://orbeeari.com/?p=48150In PDF document text
    • http://touchdownhotels.com/ifly-747-v2-__link__-crack-cocaine/In PDF document text
    • https://venbud.com/advert/quran-sharif-in-gujarati-pdf-free-free-download/In PDF document text
    • https://radialamoladora.com/wp-In PDF document text
    • https://ebbsarrivals.com/2022/07/18/easeus-data-recovery-wizard-12-9-1-install-crack-serial-In PDF document text
    • https://www.thirtythousandhomes.org/wp-In PDF document text
    • https://estatezone.net/wp-In PDF document text
    • http://raisengine.com/cichlids/qxnrdxryb24guxvpeibtag93iezyzwugrg93bmxvywqgw2z1bgwgdmvyc2lvbl0qxn.elwell.commonsense/delwyn/camus/nonvisual/zg93bmxvywr8wlk1ym5wmwvuedhnvfkxt0rbd05qwtvpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/In PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D53 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000b53f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB53F 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261